In admin/server info, check for Suhosin installed.This disrupts sessions and encypts the session variables.The session data will not be availabe when Suhosin is installed.

Session Data - You may find Report on Line does not return all the data you expect. This may be caused by Suhosin security mod for PHP. You will have to get the host to disable this to correct or install a standard PHPini file.

Try this. It contains a new session class and a new report online controller.The sessions are now class dependent instead of using php sessions.The report online is modified to use proper serialization.You should delete any existing sessions as these will create errors due to incompatibility with the new session values.Let me know if this fixes your problem.